while, my iacv is sitting in my driveway now well I let some of the cleaner soak in ;p Hopefully this will solve my lurking idle... I'll let ya know when im done. If not, i believe its the pcv valve... so I may go buy that if the iacv doens't do it.

EDIT: New problems have arisen, I believe it is either the distributor or the spark plugs/wires. Im gonna check the plugs and see how that goes, go from there... I'd really like to overcome this and avoid taking it to the dealership.

 

well, I cleaned the iacv but its still lurking a bit... and then I noticed this.

here is a pic of my engine bay...


And then I notice this hose next to the oil cap...



It is cracked a bit on both sides, with small openings, I think this may be contributing to my lurking idle... I am gonna see if I can't buy a small piece of tubing like this from discount auto parts or something... but I have to be to work in 40 min, so its not happening today! I'll keep everyone posted.

 

That'll do it. Replace and check the rest of your hoses. You can also check the if the PVC valve is good by taking a pair of pliers and pinching the hose its connected to while the car is running. The valve should "click" when you do this. I'd replace it anyways, $2.00 part.

Might wanna reset the ECU after you're done. Pull the 7.5V backup fuse under the hood for about 5mins with the car cold and off then start it up and do not touch that pedal for about 3mins after the car has warmed up.

 

Well, don't want to sound too negative, but I am pretty sure a crack in that hose won't create your problem. I think that is the valve cover breather hose. It lets pressure out of the valve cover and should take it into the intake through the throttlebody. Additional pressure will open your PCV valve and go directly into the intake. While you should fix that hose, I fairly certain it won't fix your problem. I still think that your idle problem is a vacuum leak. Check all of your vacuum hoses and make sure none of them are cracked.....

 

I will, when I get a chance, and I am also planning on replacing the pcv valve...

heh, can someone give me a quick location for it before I spend useless time trying to find it? Doesn't it connect by the intake manifold?

 

thanks for the tip killster, do I leave it out and off for 5 minutes and start it back up with the fuse out or do I put it in before I start her back up?

 

The PCV valve the thing right in the middle of your valve cover that connects to the Intake manifold

 

what makes you so certain? a crack in any hose can contribute to any number of problems with an engines performance.

 

Car off and the engine cold. Remove the fuse for about 5min then put it back in, start, and let it warm up. Don't touch the pedal at all. After the car warms up let it ldle for at least 3mins, this sets the correct idle point in the ECU. Your computer is now reset.

The PCV valve in the small black plastic peice sticking up on the middle of the valve cover towards the back. It has a hose connected to it from the IM. Just pull it out of the valve cover but be careful not to break it because if its been in there a while it might be a pain to remove.

 

Definitely not true. It really depends on the hose that is cracked. A cracked vacuum hose that causes a vacuum leak will definitely create a problem. A cracked heater hose will most likely cause a water leak and your car will overheat when you end up dumping all of your fluid. BUT, a crack in a breather hose, which connects to the intake BEFORE the throttlebody will not cause any problems. This is the hose which is shown in the pictures above. A crack in this hose will cause the breather gasses (air + oil-vapor) to escape into the air, and thus create a neglegent increase in polution. It will not create a vacuum leak because it connects to the intake BEFORE the throttlebody, nor will it create any other performance problems. A crack in almost any hose will create problems, a crack in this hose will not.